Fire-hose connecter head



March 18, 1930. c. J. DIEZ FIRE HOSE CONNECTER HEAD Filed Feb. 16, 1928IVE NTOR floaraw? Jfliez.

Y I v V. ATTORNEY Patented Mar. 18, 1930 UNITED STATES 1' owner.

CONRAD J. DIEZ, OF BALTIMORE, MARYLAND, ASSIGNOR TO AMERICAN BRASS &FIRE EQUIPMENT CORPORATION, OF BALTIMORE, MARYLAND, A CORPORATION OFMARY- LAND FIRE-HOSE GONNECTER HEAD Application filed February 16, 1928.

The invention has for its object to provide a simple and compactconnecter head which may be carried by the pumping apparatus and haveconnected thereto a nozzle equipped discharge hose line, and suction andpressure supply lines for connection with the pumping apparatus,suitable manually and automatically actuable valves being provided insaid head and all being arranged whereby the head may be connected to alire plug and a stream at service pressure played on the fire before andwhile the pumping apparatus connections are made, to be supplanted by apres sure stream through the same line after the pumper connections havebeen made without the necessity of cutting of the stream flow at anytime during the making of the said connections.

In its more detailed nature the invention seeks to provide a connecterhead embodying certain new and useful improvements over 1 the connecterhead disclosed in Patent Number 1,351,781 issued September 7, 1920,whereby a more simple and compact structure is provided includingsimplified valve structures, one adapted to be hand manipulated and oneautomatically actuated to control the lower pressure stream distributionand the change to pressure stream distribution without break of flow orloss of pressure below service pressure at any time. L Other objectswill in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects 5 and ends, my inventionconsists in the novel details of construction, combination andarrangement of parts, all of which will be first fully described in thefollowing detailed description, then be particularly pointed out in theappended claim, reference being had to the accompanying drawings, inwhich Figure l is a plan view illustrating the invention in use forsupplying water to the hose nozzle at hydrant or ordinary servicepressure.

Figure 2 is a diagrammatic plan View illustrating the invention in usefor supplying water to the hose nozzle at pumped pressure.

Figure 3 is a horizontal section illustrat- Serial No. 254,720. 7

ing the position of the valves for effecting the use disclosed in Figure1.

Figure 4 is a horizontal section illustrating the position of the valvesfor efiecting the use disclosed in Figure 2.

Figure 5 is a plan view of the invention per se.

* Figure 6 is a vertical cross section taken on the line 6-6 on Figure5.

In the drawing I have diagrammatically illustrated a fire hydrant andthe same is indicated at 1,.the large outlet thereof being indicated at2. c

The connecter head which forms the subject matter of my presentinvention is preferably carried by the fire apparatus with thenozzle-equipped discharge hose line and pipe lines for connection withthe suction or intake connection to the pumper and a pipe line fordistributing water under pressure from the said pumper attached thereto.The nozzle-equipped discharge hose line is indicated at 3 and the samehas provision at 4' for connection to the head. The suction line isindicated at 5 and has provision at 6 for connection to the head and at8 for connection with the pumper, and the pressure distributer line isindicated at 9 and has provision at 10 for connection to the head and asat 11 for connection to the pumper. Figure 1 of the drawing I haveindicated the connecter head attached to the fire hydrant and adjustedto play a stream of water on the fire at service pressure. In Figure 2of the drawing I have diagrammatically indicated the connecter headattached to the pumper and adjusted for supplying a stream underpressure provided by the said pumper.

In the practical development of the invention I provide a connecter headcasing 12 having a main valve chamber 13 which is cylindrical in shapeand is accessible through a removable cap 1 1. The casing includes aninlet throat 15 having provision at 16 for connection to the outlet 2 ofthe fire hydrant.

A sector plate valve 17 is operable in the chamber '13, the said valveplate being removably mortise and tenon connected at 18 to an operatingcradle 19, the trunnions 20 of which have bearings in glands 21 providedin the casing cover and bottom.

One of the trunnions is projected beyond its gland bearing and isfittedwith an opcrating handle 22 formed to provide a pointer 23 at one end toindicate at all timesthe V position'of the plate valve in the chamber.13.

Thechamber 13 communicates, through a passage 24, with a Y-extension 25,one branch of the said Y having provision at26 for connectionwiththehose-line 3 and the other such branch having provision at 27 forconnectionwith the pressure line 9 from thepumper. g

A valve seat 28 ispr'ovided across the pas-' sage communicating with thepipe line 9 and a valve seat 29 1s provlded across the passage 24, thesaid seats being so arranged as to be controlled by a single flap valve30 pivoted at 31 in the 'Y extension between the valve seats, and whichsaid valve is adapted to alternately and automatically seat on therespective valve seats in a manner and for a purpose soon to bedescribed.

'- The casing 1-2is also provided with an outlet32 adapted tocommunicate with the sucition line 5 to gthe bumper,see Figure 7 In usethe connecter head with the hose lines-3, 5and 9 attachedthereto ispreferably carried by the fire apparatus with the plate valved? thereofadjusted to the position I (shown in Figures 1, 3, 5 and 6. As theapparatus reaches the fire hydrant it drops the connecter head and theattached lines making the necessary run to lay the line 3. The

connecter head is then attached to the hydrant as indicated in igure .1of the drawing audit is only necessary to open the valve of the hydrantto play a stream onto the fire through the hose line 3 at hydrantservice pressure, and the said stream continues to play on the fireuntil it has been possible to V return the fire apparatus andmake'thenecessary connectlons as mdlcated 1n F1gure2 of the drawing;

When the lines 5 and 9 ed tothe pumper in the manner illustrated in i IFigure 2 the valve 17 is shifted fromthe position illustratedin Figures1 and 3 to the position shown in Figures 2 and 4.. When.

this shift is first occasioned'water will pass through the outlet 32into the suction line 5 but will continue to fiow at service pressurethrough the passage 24 so as not to discontinue the supply of a streamto the fire through the hose line 3 at service pressure.

When the pressure in the line 9 has been built up by the pumper abovethe pressure of the water passing through the passageway 24 the flapvalve 30 will be automatically shifted from the position illustrated inFigure 3 to the position illustrated'in Figure 4 when a stream at highpressure will supplant the service pressure stream in the hose line 3.

Fromthe foregoing description it will behave been c0nnectfor closing anyone 'of'said three-ports-asdeobserved that it is possible to play astream of water on the fire at service pressure during the intervalnecessary to connect and bring into function the pumper and alsopossible to supplant that'stream by a high pressure Y extensionpassages. v r

In case of emergency, such as theburstlng of the hose line 3, the valve17 may readily be shifted to close off'theinlet throat' l5- By referenceto Figures 3' and 6. of the I drawings it will be obvious'that the use.of.

the rotary valve in applicants' structure en ables him to close eitherof the ports 15, 32 or 24 as the case may be. Sometimes it happens thatdirt will get under the flap valve 29 when in the position shown inFigure 4. W hen that occurs a back leaka'geor'circuit" 7 of water flowfrom '32 through 27, through 24 back to32may occur, thereby reducing,

the efficiency of the apparatus. r'Wheni the if fireman finds thatcon'dition eXistingallhej needs to do is to turn'fthe valvei18 to closethe port 24 and that'will hold'the pressure temporarily.

From the foregoing'description, taken in connection with theaccompanying drawing,

it is thought that the-novel details of construction, the manner of useand'the' advantages of my invention will be readily apparent to thoseskilledinthe art to'which it relates. 'j I c.

.What I claim is? I p H A connecter head of the character describedcomprising a hollow casing having'a cylindrical'valve chamber andhaving" three ports, means whereby one port may becon:

nected witha fire plug outlet,'means whereby another port may beconnected with" a pumper suction line, and a Y'eXtension having apassage connected with the thirdport to communicate with said chamber, apas sage adaptedfor connection with adistributing hose line, and apassage adapted for connection with a pressure line from" a pumper, aflap valve n-sald extensionautomatically operable by water pressure forclosing the passage from the chamberinto the extension or the passagefromthe press sure line, and a rotary valve'in said chamber siredleaving the other two in' communica-- tion. CONRAD J.DI'EZ.

